Rapa Nui, famous for its carved stone heads, is located at the southern tip of the South Pacific's Polynesian Triangle. Also known as Easter Island, it is one of the most isolated inhabited places on Earth. CNN
A new analysis of ancient DNA from Easter Island, also known as Rapa Nui, reveals that the island never experienced the dramatic population collapse previously believed. This research challenges the long-standing theory that the island's population was devastated by resource depletion and internal conflict, as argued by some scholars. Instead, the findings suggest that the population remained relatively stable until the 19th century when external factors, such as Peruvian slave raiders, had a significant impact.
Rapa Nui, a remote island in the Pacific Ocean, is famous for its massive stone statues, called moai, and has long been a subject of curiosity and speculation. The island, located about 2,300 miles from the coast of South America, was settled by Polynesian explorers around 800 years ago. In the past, some experts have pointed to the island as an example of societal collapse due to environmental overexploitation. This theory was popularized in books and documentaries, which depicted Rapa Nui’s inhabitants as responsible for their own downfall through deforestation and warfare.
However, the new study, which analyzed the genomes of 15 former residents of the island, suggests a different story. The research, published in a scientific journal, found no evidence of a dramatic population drop or genetic bottleneck that would indicate a massive die-off. Instead, the study shows that the population of Easter Island grew steadily until the 1860s when the slave trade forcibly removed a significant portion of its people.
"There is definitely not a strong population collapse," said J. Víctor Moreno-Mayar, a co-author of the study and assistant professor at the University of Copenhagen’s Globe Institute. He clarified that previous claims of 80 to 90 percent of the population dying off are not supported by genetic data.
Today, Rapa Nui is a part of Chile and continues to captivate people. This engraving shows the large statues, known as moai, at the Rano Raraku volcanic crater. Getty Images
One of the most fascinating aspects of the study is the discovery of genetic links between Easter Island’s inhabitants and Native American populations from the South American coast. This suggests that the islanders reached the Americas as early as the 1300s, well before Christopher Columbus arrived in 1492. This new finding supports the idea that the Polynesian seafarers who settled Easter Island were highly skilled navigators, capable of crossing vast stretches of ocean. The researchers estimate that this interaction between Polynesians and Native Americans occurred 15 to 17 generations before the individuals studied.
While this discovery isn't entirely new—previous DNA studies and archaeological evidence, such as the presence of sweet potatoes, a crop native to South America, hinted at this connection—the current research provides more concrete evidence of the timing and extent of contact between the two populations.
Lisa Matisoo-Smith, a professor of biological anthropology in New Zealand, who was not involved in the study, commented that the findings help dismantle the myth of Easter Island's collapse. She noted that the Polynesians who settled on the island were exceptional navigators and that reaching South America would have been a natural extension of their exploratory voyages across the Pacific.
The DNA analysis was made possible by the remains of former Rapa Nui inhabitants that had been collected in the late 19th and early 20th centuries. The researchers worked closely with the Rapa Nui community to ensure proper consent for the study and hope that their findings will contribute to the eventual return of the remains to their homeland for reburial.
